RANKING · 1990 CENSUS · 72 SHOWN OF 72

Least racially diverse, Wisconsin counties · 1990

Wisconsin counties with the lowest CensusEasy Diversity Score, where most residents share the same race or ethnicity (1990 ACS). This list covers the 72 counties in Wisconsin that qualify, ranked against each other statewide. The median across all 72 is 5.

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WisconsinAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

RANKPLACESTATEPOPDIVERSITY SCOREVS –

01Iowa County, WIWI23,9511–

02Iron County, WIWI6,1271–

03Lafayette County, WIWI17,4781–

04Taylor County, WIWI20,1181–

05Trempealeau County, WIWI31,1712–

06Buffalo County, WIWI13,3182–

07Richland County, WIWI17,0362–

08Pepin County, WIWI7,5132–

09Vernon County, WIWI31,4432–

10Clark County, WIWI35,0522–

11Price County, WIWI13,9882–

12Marinette County, WIWI42,5742–

13Green County, WIWI37,2272–

14Kewaunee County, WIWI20,7582–

15Florence County, WIWI4,7482–

16Lincoln County, WIWI28,4033–

17St. Croix County, WIWI98,2763–

18Barron County, WIWI46,4843–

19Washington County, WIWI139,2383–

20Grant County, WIWI52,4463–

21Oconto County, WIWI40,1953–

22Sauk County, WIWI66,6523–

23Door County, WIWI30,6163–

24Langlade County, WIWI19,5343–

25Waupaca County, WIWI51,4613–

26Chippewa County, WIWI67,6143–

27Crawford County, WIWI15,9103–

28Polk County, WIWI45,8034–

29Calumet County, WIWI53,9824–

30Green Lake County, WIWI19,3054–

31Pierce County, WIWI43,5194–

32Juneau County, WIWI26,6494–

33Columbia County, WIWI58,1325–

34Wood County, WIWI74,0605–

35Oneida County, WIWI38,1315–

36Ozaukee County, WIWI94,3465–

37Monroe County, WIWI46,5725–

38Marquette County, WIWI15,9275–

39Washburn County, WIWI17,0875–

40Rusk County, WIWI14,1465–

41Fond du Lac County, WIWI104,6696–

42Manitowoc County, WIWI81,7106–

43Portage County, WIWI71,9436–

44Jefferson County, WIWI86,5056–

45Waushara County, WIWI25,2237–

46Marathon County, WIWI139,4327–

47Dodge County, WIWI89,0977–

48Winnebago County, WIWI174,2187–

49Dunn County, WIWI46,2237–

50Waukesha County, WIWI417,2108–

51Douglas County, WIWI43,9908–

52Outagamie County, WIWI195,8948–

53Eau Claire County, WIWI109,03310–

54Sheboygan County, WIWI118,04710–

55Walworth County, WIWI106,12710–

56La Crosse County, WIWI121,33910–

57Burnett County, WIWI17,22311–

58Brown County, WIWI275,80311–

59Jackson County, WIWI20,99912–

60Shawano County, WIWI41,56012–

61Adams County, WIWI21,75213–

62Rock County, WIWI166,47216–

63Dane County, WIWI590,37517–

64Vilas County, WIWI23,76121–

65Kenosha County, WIWI168,44822–

66Bayfield County, WIWI16,78722–

67Ashland County, WIWI16,20322–

68Forest County, WIWI9,57425–

69Menominee County, WIWI4,19925–

70Sawyer County, WIWI18,84633–

71Racine County, WIWI198,91934–

72Milwaukee County, WIWI924,21653–

SHOWING 1–72 OF 72

Download CSV (full list, 72 rows)How this score is calculated

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS